Definition of "lapstone" [lap•stone]

• A stone for the lap, on which shoemakers used to beat leather. (noun)

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• "Now it's cannon balls and axes and disks -- if a "lapstone" be a disk -- it's a flat stone, at any rate."
• ""lapstone," quite as Mr. Symons called a spherical object a "cannon ball": bent upon a discrediting incongruity:"
• "One of them procured somewhere an old lapstone, and breaking it into small fragments, selected one as the specimen to be subjected to the intended victim for testing."